Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : 
      21             : #include <canvas/debug.hxx>
      22             : #include <basegfx/matrix/b2dhommatrix.hxx>
      23             : #include <basegfx/point/b2dpoint.hxx>
      24             : #include <basegfx/numeric/ftools.hxx>
      25             : #include <basegfx/matrix/b2dhommatrixtools.hxx>
      26             : #include "clockwipe.hxx"
      27             : 
      28             : 
      29             : namespace slideshow {
      30             : namespace internal {
      31             : 
      32           0 : ::basegfx::B2DPolygon ClockWipe::calcCenteredClock( double t, double e )
      33             : {
      34           0 :     ::basegfx::B2DPolygon poly;
      35           0 :     ::basegfx::B2DHomMatrix aTransform;
      36           0 :     aTransform.rotate( t * 2.0 * M_PI );
      37           0 :     const double MAX_EDGE = 2.0;
      38           0 :     ::basegfx::B2DPoint p( 0.0, -MAX_EDGE );
      39           0 :     p *= aTransform;
      40           0 :     poly.append( p );
      41           0 :     if (t >= 0.875)
      42           0 :         poly.append( ::basegfx::B2DPoint( -e, -e ) );
      43           0 :     if (t >= 0.625)
      44           0 :         poly.append( ::basegfx::B2DPoint( -e, e ) );
      45           0 :     if (t >= 0.375)
      46           0 :         poly.append( ::basegfx::B2DPoint( e, e ) );
      47           0 :     if (t >= 0.125)
      48           0 :         poly.append( ::basegfx::B2DPoint( e, -e ) );
      49           0 :     poly.append( ::basegfx::B2DPoint( 0.0, -e ) );
      50           0 :     poly.append( ::basegfx::B2DPoint( 0.0, 0.0 ) );
      51           0 :     poly.setClosed(true);
      52           0 :     return poly;
      53             : }
      54             : 
      55           0 : ::basegfx::B2DPolyPolygon ClockWipe::operator () ( double t )
      56             : {
      57           0 :     const basegfx::B2DHomMatrix aTransform(basegfx::tools::createScaleTranslateB2DHomMatrix(0.5, 0.5, 0.5, 0.5));
      58           0 :     ::basegfx::B2DPolygon poly( calcCenteredClock(t) );
      59           0 :     poly.transform( aTransform );
      60           0 :     return ::basegfx::B2DPolyPolygon(poly);
      61             : }
      62             : 
      63             : }
      64             : }
      65             : 
      66             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */